BSC 1 Year Chemistry Paper. We covered all the BSC 1 Year Chemistry Paper MCQs in this post for free so that you can practice well for the exam.
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BSC 1 Year Chemistry Objective Paper for Students
The date of manufacture of food items fried in oil should be checked before buying because oils become rancid due to:
(a) Oxidation
(b) Reduction
(c) Hydrogenation
(d) Decrease viscosity
Option a – Oxidation
In a reaction, what is the loss of hydrogen by a substance called?
(a) Reduction
(b) Oxidation
(c) Hydronization
(d) Both reduction and hydronization
Option b – Oxidation
The bleaching action of chlorine is due to which reaction?
(a) Oxidation
(b) Hydrolysis
(c) Redox
(d) Decomposition
Option a – Oxidation
Starch iodide paper is used to test for the presence of:
(a) Iodine
(b) Iodide iron
(c) Oxidizing agent
(d) Reducing agent
Option c – Oxidizing agent
In a reaction, the concentration of principal reactants is equal to the concentration of products. This state of a reaction is called as:
(a) Reversible reaction
(b) Chemical equilibrium
(c) Irreversible reaction
(d) Forward reaction
Option b – Chemical equilibrium
What is the role of a positive catalyst in a chemical reaction?
(a) It increases the rate of reaction.
(b) It decreases the rate of reaction.
(c) It increases the yield of products.
(d) It provides better purity of the products.
Option c – It increases the yield of products
The solubility of calcium oxide in water increases by lowering the temperature. Thus, the dissolution process is:
(a) Endothermic
(b) Exothermic
(c) Non-thermic
(d) Cannot be decided
Option b – Exothermic
Corrosion is the oxidative deterioration of a metal, such as tarnishing of silver, rusting of iron, and development of a green coating on copper and bronze. Corrosion is an example of:
(a) Fast reaction
(b) Slow reaction
(c) Homogeneous reaction
(d) Heterogeneous reaction
Option b – Slow reaction
We covered all the bsc 1 year chemistry paper mcqs above in this post for free so that you can practice well for the exam.
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